le pontois



L. J. LE PONTOSS. ELECTRIC GENERATOR. APPLICATION FILED OCT-14,1914. RENEWED APR. 23.1919] Patented Feb 3,1920. 2 SHEETb-SHEhT I.

L. J. LE mumps.- ELECTRIC GENERATOR. APPLICATION FILED OCT- I4, 1914. 1,330,037.

RENEWED APR. 23- l9I9.

w Aftorne Patented Feb. 3,1920.

2 SHEETS-SHEET 2- a KW m Li H UNITED PATE T. OFFICE.

LnoN J. LE PONTOIS, or LAKEWOOD, omo, ASSIGNOR, BY MEsNi: ASSIGNMENTS, TO lrnn rrEaoLE coMPANy, or CLEVELAND,'OHIO, A CORPORATION or 0310.

ELECTRIC Patented Feb. 3,1920.

Application filed October 14, 1914, Serial No; 866,605. Renewed April 23, 1919. Serial No. 292,242.

To all whom 2t may concern tion pu p'oses,more particularly high tension' I electric-.1 impulses. I

' Model magneto, which,

' ta ined high tension m 1 rious cylinders.

One of its principal objects is to incorporate in 'a'mot'or." for example like the one used in the well known Ford automobile,

'l 'type,'a self contained, high tension magneto, in such manner that the engine case and magneto together form a unitary structure, each being a component part of the other, v'

I am "aware of the fact that it has been proposed to attach to the 'crank case ofi a- Ford motor of this. type, a standard form of mounted upon or removed'fron the engine casing by merely connecting the magneto to or disconnecting it from the engine casing, in some instances a new end' plate being supplied for the purpose. My idea, however, is to build, so to spe k, a. high tension generator into the Ford motor and by so doing to economize space and weight, reduce the. number of parts involved, and have an electrical generator especially designedfor the Ford motor and incorporated in the structure as a component part thereof.

Another object of my invention has been to provide for this type f motor a self conetc which, will be accurately timed to the mdtqr without addition of any gearing other than tha already present in the motor, namely the ge rmg' between the cam and the crank shags, there by avoiding the multiplicity of cars employed in attaching standard magnetos to the Ford motor with incident lost'motion in the gearing 'and consequent undesirable effects upon the timing. In' fact,' I- have sought. to incorporate a self cont ined high tension generator in tlie Ford motor n such manner as to insure most accurate ign tion timing, synchronous generation of the ignition sparks and substantial iconsonance n as-a unit in itself, may be .Figure 1' is .a' front elevation of an end plate for the front end of a crank case of a Ford motor having combined therewith electric generating mechanism embodying my invention. I,

Fig. 2 is a section on the line 22 of Pi s; 3 and 4; of the mechanism illustrated in Fig.1.. r

Fig.1?) is a section on the line 33 of Fig. 2, a portion of the .crank case and engine gearing being shown in section.

Fig. 4 is a section on the line 4-4; of "Fig.2. a Fig. 5 is a view partly in elevation and partly in section" of the distributer mecha:

nism.

Fig. 6 is a'wiring diagram.- 7 In the drawings, 1 indicates an'end plate. The one illustrated is particularly adaptedto close the front end of the crank case 0 of a Ford motor of the type in question. In f the embodiment of my i'nventionshown in the drawings, this-end plate is of non-m gnetic material. 2 is abearing plate of iron set in a recess in the e d plate 1 and secured in position by screws 2, but one of which 86- ranged the generating winding andcircuit 90 opening and closing mechanism hereinafter 3 isan endplatefor the box-like section 1. It is removably secured to-the walls 1, 1 and 1 and may be made of iron; 4 are permanent In gnets, preferably of the horseshoe type, which straddle the section 1 the end plate 1 and have their polar extrerhities 'engagin(g respectively with the iron plates 2 and 3. -5 is an unwound r0 r made of iron and having a plurality-of lar'projectious 5, each of which has a polar surface 5 disposed'in aplane "atrigh t angles I to the axis of therotpr. I I The rotor has a rarwardly extending hub 5 which is mounted in ananti-hiction bear ing' fi'iflal'fl'ied by the plate 2. This, bearing mgygiije' constructed to take load as well as jections' are disposed in a plane preferably 'jecti'ons. 'Inthe drawings two such prO ec- 'tions are shownl: lhe one marked 14E is carried by timing gear. 9, secured to the cam shaft 8, as shown in Fig. 3. The front end of the Ford cam shaft may, as indicated, be cut oil adjacent the nut 10 thereon which positions the gear 9. Extending forwardly from the rotor 5 and secured thereto is the co-axially arranged shaft 11, made preferably of non-magnetic metal or metal of low magnetic permeability. At its front end this shaft is mounted in an anti-friction bearing 12 constructed preferably totake thrust in both directions, one section of this bearing being held in position by a nut 13 on the end ofthe shaft 11.

ll is a stator inade gof iron and having a hub 1-1 mounted to oscillate inthe plate The'stator carries a plurality of polar prolaminated, while the bypass marked. 14c is not shown to be laminated. Thepolar faces l i and 14 respectively, of these polar proas closely adjacent to the parallel plane of' the polar surfaces of the rotor as manufacturing expediency will: permit, so as to in sure relatively narrow air gaps between these cooperating parts. .15 is an-o'perating. lever for the stator suitably secured thereto as by means of screws 15;

The double thrust bearing 12 is positionedi in a recess provided therefor in the hub? of the stator .and is secured in position suitable nuts 12. yf

16 indicates as an entirety a gene-rating winding. The'one illustrated comprises a section 16 of relatively coarse .wire, the primary winding, and a section 1G of rela tively fine winding, the. secondary winding, carried by the stator and surrounding the laminated polar projection 14*.

17 indicates a suitable mechanism for opening and closing the primary circuit of the generating winding. It consists of a frame 18 detachably secured to an upwardly extending projection 14 on thestatoi by means of a screw 18. 19 is abreak'er arm pivotally secured intermediate its endsfat 19 to the frame 18. At one end. it carries preferably adjacent the by-pass 11 thereof.

acam engaging shoe '20 and at its other enda movable breaker electrode 21. is a relatively stationary breaker electrode, adjustably mounted ina projection on the frame 18. 23 is a spring seated at one end in the frame 18 and at its other end in the adjacent end of the breaker arin 19. andadapted normally to press the said arm soas to effect engagement between the electrodes 21 and 22. 24; is a cam suitably secured to. the shaft 11 soas to rotate therewith and from time to time permit the engagement and effect the disengagement of the breaker electrodes in a well known manner.

, Any suitable distributer mechanism may be employed.

1 indicate one at 25 is a support extending upwardly from and carried by the end plate 1 and having a tubular section 25 through which extends the distributer shaft 26 which is geared at its lower end to the shaft 11 by means of miter gears 27/75 At its upper end the distributer shaft carries the distributer brush :28 which is suitably insulated and is adapted to cooperate with the distributer segments 29, each of which is connected with one of the distributer terminals 8-0 30 and is in turn carried by a suitable distributer cap piece 31 of insulating material. Electrical connection between the high tension winding 16Pand the distributer brush 28 is effected through the instrumentality of a high tension segment 32 electrically connected to one terminal-of the.- high tension winding '16 so as to swing with said wind- 1 ing: about the axis of the stator, a suitable brush andsocket connection carried by ,the insulating plug 34 in the wall 1, an insulated electrical conductor electrically connectedat one end t'o the terminalpiece 33 as by nut 36, and at its upperehd by the insulated nut 87 to the socket piece 38 which has electrical connection through the brush 39 with thesocket 28 for thebrush 28.

The space between the nut 36 and the adjacent wall of the permanent magnets may be utilized as a-safety spark gap.

In order'to collect as much of themagnetic flux as possible and directit tl 1r0ugh,the

coil, I have provided flux collecting plates 40, 41, each of which is'arranged in contact with the inner surface of oneof theanagnet 5 legs" and is held in position in anysuitable manner as by screws, fitted into inwardly extending lugs carriedby the walls 1 and 1, respectively. The magnets & are held. in

position by bolts 4% extending through open- '10 ings in lugs 1 infthe wall l". In'order to provide against the polar surface 1% of the stator being drawn into en'- gagement with the polar surface of the rotor, the collector 'plateflO and adjacent' l'l5 wall'of the stator may be rabbeted as indicated at 40. i n

12 is a condenser carried by the stator,

.T his condenser connected in parallel with the electrodes 21 and i r 4:3 is a cover plate for an opening in the box like extension 1, adapted 'to' permit ready access to the breaker mechanism.

In operation thecam 21 is shaped andpositioned so as to insure the closing of the primary circuit throughthe electrodes iti and 22, each time that. oneof the polarsu'r;

faces5 of/the rotor .is moving awa from {the polar surface 1e. of the stator,-'and'a'1ac current is induced in the primary nvi' ding In the mechanism illustrated in the draw ings, the stator carries the breaker apparatus, generating winding and condenser and is oscillatable about the axls of the rotor so as to vary the time of generation of th'e igniting sparks, and to insure that the sparks will have the same value at any place throughout therange of the mechanism be- 1 tween the limits of 'fulladvance and 'full retard, for any given speed of rotation.

With a high speed', light weight motor of the Ford type in ue'stion, I have found it to be most advan geous 'n the actual operation of the mo tor vehi le to have runder tlifierent operatingc'onditions as to load and speed, full value of igniting cu'rrent throughout the vfull range of adjustment. The F0 d cam shaft runs at one half crank shaft spe led. "Accordingly, Lfour igniting impulses are necessary for e ch revolution of the cam shaft, and it will be noted-that the rotoris provided with a polar projections having polar faces .5, and that the cam 2% closes and opens the primary circuit four ,times' during each revolution.

In orderto install a generator embodying' my invention upon a Ford car, all that is 40 necessary is to remove the end plate for theupper half of the crank case, out ofi' the end of the Fordcam'shaftadj a'cent the nut 10, and then put one of the constructions herein illustrated in the place of the end plate removed, causing the pins 7 on the cam shaft gear 9 toenter the notches 5 in the rotor hub; This will insure proper timing of the rotor and cam relative'to the cam shaft a'nd the only possibility of error in timing may arise in carrying the ter is in getting number land number 4, and number 2 and number 3 cylinders connected wron by 180 degrees,-whereupon by chang ing t e terminalleads between 1 and 4 and between 2 and 3,, respectively,

alteration wlllbefound necessary. It will be noted that aconstruction embodying my the Ford cam shaftflandthe connection bea ti tween itshaft through the inal leads, from the distributerto the cylinders, that p r the timing will become roper. N-o adjustment or other e f rear a instrumentality of the pins on the timing ge'ar is substantially universal in nature, not requiring close fit. The timing is accurate,

'tliegenei'ation of firing impulses synchro nous, and all the parts are correla ed so as '70 to. cooperate in a durable and efficient manner.

To those skilled in the art of making mechanism of the class described, many alterations in construction and'widely diiferin embodiments and applications of my in vention will suggest themselves, without de-' parting'from the spirit and scope thereof; My disclosures and the description herein;

' are purely illustrative, and are not intended' iBQ to be in any sense limiting.

' \Vhat I claim is:

1. In combination, asection of an en 'ne casing having a cut-away portion, a' leld magnet having one leg thereof forming an insert for said cut-away portion, a rotor.

mounted 'in said section and having 'olan surfaces rotatable between the poles of said fie-ld' magnet. a stator interposed between said rotor and one of said magnet poles and having a plurality of polar projections, and a generating winding on one of said polar; projections. i

2. In combination, a U-shaped fieldmag-I. net, a stator arranged between the legs of said magnet, 'adjacent one of the poles'of the magnet, and having a plurality ofpolaii projections extending in the direction of r the other pole of said magnet, a generatin winding in inductive relation'to one of said polar projections on said stator, and a rotor having a plurality of 'polar faces adapted to pass between the last mentioned pole 0: said magnet and the polar surfaces of said polar projections on the stator and thereby establish paths of least magnetic reluctance first through and then outside of said gen'-' crating winding. 1 i

3.; In combination, a U-sha edfield magnet, a' support extending rom one leg no thereof, a rotor mounted in said support on an axis at right angles-to the legs of-saidl' magnet and having a pluralityof olarfaces arranged in. a plane p tl'fll-lel-to the legs .ofsaid ma et and adapted to be r,o- 1 15 tated between t e poles of the magnlat,"-a stator arrangedbet'ween the plane of the polar faces ofsaid rotor and one ofsai'cl magnet poles andhaving a plurality .of polar projections, and a generating winding in in-' ductive relation to one of said polar projections, the polar faces'of said rotor and said polar projections being shaped and disposed alternately 'toestablish, during the opera- "tion'ofsaid rotor,a path for the flux b'etween said poles'firstthrough" and then-cub sidel said" generating winding,

net, a support extending pungen =leg l new -i 20;

" 4. In combination,'a U-shapled an axis at right angles to the legs of'saidon an axis at right angles to magnet and having a plurality of polar faces arranged in a plane parallel to the legs of said magnet and adapted to be rorated between the poles of the magnet, a

stator arranged between the plane of the said rotor and one of said and having aplurality of a generating winding in inductive relation to one of said polar projections and means for effecting relative angular adjustment between the field magpolar faces of. magnet poles, polar projections,

net and the stator during'the operation of the rotor.

. 5. In combination, a'U-shaped field magnet, a support extending from one leg thereof, a rotor mounted in-said support on magnet and'having a plurality of polar faces arranged in' legs of said magnet and adapted to be rotated between the poles of the magnet, a

stator arranged between the plane ofthe polar faces of said rotor and one of said magnet poles and having a plurality of polar projections, a generating winding in inductive relation to one of said polar protion of non-magnetic material supporting and spacing said end plates, a rotor mounted in one of said end plates and astator carried by the other end plate,oboth said rotor and stator having polar projections with cooperating polar faces arranged in planes at right angles to the axis of said' rotor, a generating winding on said stator, and a magnet embracing said box-like section and having each of its legs engaging with the adjacent end plate.

'- 7. In combinatlon, a section of an engine casing, an unwoundrotor and a stator, each having a plurality of polar projections and each supported by and removable with said section of the engine casing, a generating winding on said stator and a permanent magnet having its poles in inductive relation to said rotor and stator. I v

8. In combination, a support comprising a pair of parallel sections of iron separated by a box-like section of non-magnetic material, one of said iron sections having a lurality of inwardly extending polar proections with polar surfaces in a common plane, a rotor mounted in the other section andhaving polar surfaces arranged to cooperate with the polar surfaces of said polar projections, a generating winding on one of said polar projections, and afield magnet embracing said box-like and having the legs of said a planeparallel to the polar faces in ofsaid rotor and each of its polar extremities in engagement with, the adjacent 1I0I1 section.

9. In combination, an end plate for the crank case of an engine, a cam shaft mount-v ed independently of said end plate, a rotor mounted in said end plate and provided with a plurality of polar projections having polar faces in a plane at right angles to the axis of said cam shaft, said .rotor having driving connection with said cam shaft, a stator supported having a plurality of polar projections with frornvsaid end plate and.

polar faces disposed to cooperate with the polar surfaces of the polar projections on said rotor, a generating winding on one of the polar pro ections on said stator, and a field magnet having one of its poles adjacent 'to'one surface of said rotor and its other pole adjacent to the opposite surface of said j stator.

10'. In combination, an end plate for the crank case of an engine, a cam shaft mounted independently of said end plate, a rotor mounted in said end plate and provided with a plurality of polar projections having a plane at right angles to the axis of said cam shaft, said rotor having driving connection with'sai-d cam shaft, a stator supported from said end plate and having a plurality said rotor, a generating Winding on one of the polar projections on said stator, a field magnet having one of its poles adjacent to one surface of said rotor and its other pole adjacent to the opposite surface of said of polar projections with polarfaces disposed to cooperate with the polar surfaces of the polar projections on stator, and means for causing relative angufrom said end plate and having a plurality of polar vprojections with polar faces dis-- in movement between said rotor and stator posed to cooperate with the polar surfaces of the polar projections on said rotor, a

generating winding on one of the polar projections on said stator, a field magnet having one of its poles adjacent to one surface its other pole adjacentto the opposite surface of said stator, a gear for driving said cam shaft, and a driving connection between said gear and said rotor.

12. .In combination, a support comprising a pair of parallel sections of iron separated by a box-like section of non-magnetic mate rial,-one of said. iron sectionshaving a plurality of inwardly extending polarprojections with polar surfaces in a common plane,

4o A tions being shaped and disposed alternately weeps a rotor mounted in thefother section and 'havin polar surfaces arranged to cooperate with t e polar surfaces of said polar pro ejections, a generating-winding on one of saidf'polar. projections, a field magnet embracin'g said boxelike, section and having each of itspolar extremities in engagement with the adjacent iron section, a distributer supported by said box-like section and hav- 1mg a shaft extending through one wall into the interior thereof, and gearing between ,said'rotor and the inner-end of said dis tributer shaft.

13, In combination, an end plate for the crank case of an engine, a field magnet supported by said end plate, a rotor supported by said end plate and having a plurality of outwardlyturned polar projections having polar faces arranged to pass successively between the poles of said field magnet d11l-' ing the rotation of the rotor, a stator sup ported from said end plate and having a.

? casing and having a plurality of polar projections with polar faces.- disposed to cooperate with the polar faces of said rotor, a generating winding on one of said polar projections, and a field magnet supported by said section of the engine casing and having its poles disposed in inductive relation to said rotor and stator, the polar faces of saidrotor and said polar projecto establish, during the operation of said I rotor, a path for the fluir between said poles first through and then outside said generating winding.

- 15. In combination, a section of an engine casing, a rotor having a plurality of polar faces, a stator having a plurality of polar projections with polar faces disposed to cooperate with the polar faces of said 5 rotor, said rotor and stator being supported by and removable with said section ofv the engine casing as aunit, a generating winding onsaid stator, a permanent mag net having its poles in inductive relation to said rotor and stator, and circuit closing and opening mechanism for said generating winding actuated by said rotor. I

16. In a machine of the class described, a stator and a rotor co-axially disposed, each having a plurality of polar projections with cooperating .polar surfaces disposed in planes at right angles to said axis, a generating winding carried by one of said polar projections, a circuit breaker mounted on rotor for actuating said circuit breaker, and a field magnet structure rotor and stator.

17. A machine of the class described, including a rotary unwound inductor, a fixed field magnet energizing said rotary inductor,

a polestructure having a plurality of polar projections angularly adjustable about the axis of said inductor and arranged entirely between the polar faces of said inductor and one of the poles of said field magnet, a

said stator, a camat the inner side of said embracing said generating winding carried by one of said polar projections and adapted to be acted upon by unidirectional flux passing through said-polar projection, and a circult breaker and condenser mounted on said pole structure and adjustable with said polar projections.

In testimony whereof I aflix my signat sure,

in the presence of two witnesses.

Witnesses: 1

JOHN C. Banmr, EDWARD B. ALEXANDER.

LEON J. LE PUNTOIS, i 

